2 Functions: Bike lock and rear bike light combined into one. Comes with a mounting bracket that can be installed under the bicycle seat cushion, making it easy to carry. The bicycle lock can be used as a tail light at night, serving as a warning function to improve the safety of nighttime cycling！
4 Lighting Modes: The bicycle taillights have 4 modes: white password light, red light always on(6 hours), red weak light always on(10 hours), and red light flashing fast(7 hours). Click the switch to switch. Turning on the password light at night makes unlocking more convenient.
5 Digit Password: The initial password is: 00000. Bike locks high security with 5-digit password that can be reset. No keys are needed, so you don't have to worry about losing or forgetting the keys. With 100000 permutation password combinations, it has high security and strong anti-theft effect.
USB Charging: Equipped with a USB charging cable, it can be charged from any device with a USB port, making charging fast and convenient without the need to replace the battery. Full charge can last for 6-10 hours and has a long standby time.
Durable & Sturdy: The exterior of the lock body is wrapped in PVC, which does not damage the frame or wheel group. 12mm wide lock body for security and theft prevention. The length of the cycle lock is 120 cm, and when not in use, the cable lock can be self rolled and clamped on the bracket, making it easy to carry.